China advances 4.2 GWh compressed air storage project

<p class="p1"><span class="s1">Zhongchu Guoneng (Beijing) Technology Co., Ltd. (ZCGN) says officials in Sanmenxia, Henan province, have cleared a 700 MW/4,200 MWh compressed air energy storage proposal that is designed to support long-duration grid flexibility as renewable generation increases.</span></p><p><strong>From <a href="https://www.ess-news.com/2025/11/27/china-scales-up-long-duration-storage-with-4-2-gwh-compressed-air-project/" rel="noopener" target="_blank">ESS News</a></strong></p>
<p>China is moving ahead with one of its biggest compressed air energy storage (CAES) projects after officials in Shanzhou district of Sanmenxia, Henan province, cleared a proposal for a 700 MW/4,200 MWh long-duration storage plant from ZCGN, the country’s leading CAES developer.</p>
<p>The six-hour-duration system marks a major step in Henan’s drive to create a modern grid capable of integrating growing amounts of intermittent renewable generation.</p>
<p>With its filing approved by the local Development and Reform Commission on Nov. 24, the project is expected to commence construction in 2026, subject to environmental, land-use, and planning clearances.</p>
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